hi , i had bought a pixel 8a with graphene os instaled , but i dont know how to opérate it , cause there is an app that says "play. store " , obviusly without google , but i can not install nothing , and i tried to get into duck duck go (instead of google ) to install F-droid , to download apps , but it ask me for my google account , almost in everything , and the Point is not to use google,right?? , so please i need help ,so that i can get apps like brave , or Signal , just that